Absorb qtshadertools submodule

commit9ab67f6c672465136432d895c5f8b2446f114db0
parentea278bed29aa8cd94125f0d75fff26b228820557
parente9d1b1bc02f2799ea1ef4faa56797089b5f98693
authormozsearch-qt index builder <mozsearch-qt@localhost>
committermozsearch-qt index builder <mozsearch-qt@localhost>
commit timeThu, 29 Oct 2026 16:27:28 +0000